Ok so I popped in the 9600GT and installed 190.38 - for some reason 190.40 wouldnt work with both cards and physx in Win7. Anyways, set everything to max, 4xaa 1680x1050 and highest physx. Before with just my OC'd GTX 280 I was in the 40s with dips to the 30s. Now I was pegged at 60FPS, just played through the whole demo, there were a few spots on the last big room with the cloth stuff moving I dropped to 54fps but that was the lowest I saw. Definitely need dedicated physx card for this to be on high and maintain 60 FPS.